WF4.0 Beta1 WorkflowInvoker

WorkflowInvoker
Use WorkflowInvoker. Invoke static method

Public static IDictionary <string, object> Invoke (WorkflowElement workflow );   Public static IDictionary <string, object> Invoke (WorkflowElement workflow, IDictionary <string, object> inputs );   Public static IDictionary <string, object> Invoke (WorkflowElement workflow, TimeSpan timeout );   Public static IDictionary <string, object> Invoke (WorkflowElement workflow, IDictionary <string, object> inputs, TimeSpan timeout );

 

Example 1: input the parameter and obtain the result.

Process		Public sealed class Add: CodeActivity <int> { Public InArgument <int> X {get; set ;} Public InArgument <int> Y {get; set ;}   Protected override void Execute (CodeActivityContext context) { Int x = X. Get (context ); Int y = Y. Get (context );   Context. SetValue (base. Result, x + y ); } }
Call		Static void Main (string [] args) {   Var p = new Dictionary <string, object >{{ "X", 1 },{ "Y", 2 }};   IDictionary <string, object> results = WorkflowInvoker. Invoke (new Add (), p ); Console. WriteLine (results ["Result"]);   Console. ReadLine (); }

 

Use WorkflowInvoker instance

Public WorkflowInvoker (WorkflowElement workflow );   Public Collection <object> Extensions {get ;}   Public event EventHandler <InvokeCompletedEventArgs> InvokeCompleted;   Public IAsyncResult BeginInvoke (AsyncCallback callback, object state );   Public IAsyncResult BeginInvoke (IDictionary <string, object> inputs, AsyncCallback callback, object state );   Public IAsyncResult BeginInvoke (TimeSpan timeout, AsyncCallback callback, object state );   Public IAsyncResult BeginInvoke (IDictionary <string, object> inputs, TimeSpan timeout, AsyncCallback callback, object state );   Public IDictionary <string, object> EndInvoke (IAsyncResult result );   Public IDictionary <string, object> Invoke ();   Public IDictionary <string, object> Invoke (IDictionary <string, object> inputs );   Public IDictionary <string, object> Invoke (TimeSpan timeout );   Public IDictionary <string, object> Invoke (IDictionary <string, object> inputs, TimeSpan timeout );   Public void InvokeAsync ();   Public void InvokeAsync (IDictionary <string, object> inputs );   Public void InvokeAsync (object userState );   Public void InvokeAsync (TimeSpan timeout );   Public void InvokeAsync (IDictionary <string, object> inputs, object userState );   Public void InvokeAsync (IDictionary <string, object> inputs, TimeSpan timeout );   Public void InvokeAsync (TimeSpan timeout, object userState );   Public void InvokeAsync (IDictionary <string, object> inputs, TimeSpan timeout, object userState );

 

Example 1: InvokeAsync method and invokeCompleted event

 

Process

Public sealed class Add: CodeActivity <int> { Public InArgument <int> X {get; set ;} Public InArgument <int> Y {get; set ;}   Protected override void Execute (CodeActivityContext context) { Int x = X. Get (context ); Int y = Y. Get (context );   Context. SetValue (base. Result, x + y ); } }

Call

Static void Main (string [] args) {   WorkflowInvoker myInvoker = new WorkflowInvoker (new Add ());   Var p = new Dictionary <string, object >{{ "X", 1 },{ "Y", 2 }};   MyInvoker. InvokeCompleted + = new EventHandler <InvokeCompletedEventArgs> (myInvoker_InvokeCompleted );   MyInvoker. InvokeAsync (p );   Console. ReadLine (); }   Static void myInvoker_InvokeCompleted (object sender, InvokeCompletedEventArgs e) { Console. WriteLine (e. Outputs ["Result"]); }

 

Example 2: BeginInvoke method and EndInvoke Method

Process

Public sealed class Add: CodeActivity <int> { Public InArgument <int> X {get; set ;} Public InArgument <int> Y {get; set ;}   Protected override void Execute (CodeActivityContext context) { Int x = X. Get (context ); Int y = Y. Get (context );   Context. SetValue (base. Result, x + y ); } }

Call

Static void Main (string [] args) {   WorkflowInvoker myInvoker = new WorkflowInvoker (new Add ());   Var p = new Dictionary <string, object >{{ "X", 1 },{ "Y", 2 }};   IAsyncResult ir = myInvoker. BeginInvoke (p, new AsyncCallback (callback), myInvoker );   Var r = myInvoker. EndInvoke (ir );   System. Console. WriteLine (r ["Result"]);   Console. ReadLine (); }       Static void callback (IAsyncResult asyncResult) { System. Threading. ManualResetEvent mr = asyncResult. AsyncWaitHandle as System. Threading. ManualResetEvent;   System. Console. WriteLine ("callback "); }

 

I will write a group later

Example of using WorkflowInvoker to call a sub-process

And

Example of using WorkflowInvoker to test the full-path process with backtracing